package org.dadacoalition.yedit.preferences.tasktag;

import org.dadacoalition.yedit.Activator;
/*******************************************************************************
 * Copyright (c) 2005, 2008 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     QNX Software System
 *******************************************************************************/
import org.eclipse.core.runtime.IStatus;

/**
 * A settable IStatus
 * Can be an error, warning, info or ok. For error, info and warning states,
 * a message describes the problem
 */
public class StatusInfo implements IStatus {
    
    public static final IStatus OK_STATUS= new StatusInfo();

    private String fStatusMessage;
    private int fSeverity;

    /**
     * Creates a status set to OK (no message)
     */
    public StatusInfo() {
        this(OK, null);
    }

    /**
     * Creates a status.
     * @param severity The status severity: ERROR, WARNING, INFO and OK.
     * @param message The message of the status. Applies only for ERROR,
     * WARNING and INFO.
     */ 
    public StatusInfo(int severity, String message) {
        fStatusMessage= message;
        fSeverity= severity;
    }       

    /**
     * @see IStatus#getChildren()
     */
    public IStatus[] getChildren() {
        return new IStatus[0];
    }
    /**
     * @see IStatus#getCode()
     */
    public int getCode() {
        return fSeverity;
    }
    /**
     * @see IStatus#getException()
     */
    public Throwable getException() {
        return null;
    }
    /**
     * @see IStatus#getMessage
     */
    public String getMessage() {
        return fStatusMessage;
    }
    /**
     * @see IStatus#getPlugin()
     */
    public String getPlugin() {
        return Activator.PLUGIN_ID;
    }
    /**
     * @see IStatus#getSeverity()
     */
    public int getSeverity() {
        return fSeverity;
    }
    public boolean isError() {
        return fSeverity == IStatus.ERROR;
    }
    public boolean isInfo() {
        return fSeverity == IStatus.INFO;
    }
    /**
     * @see IStatus#isMultiStatus()
     */
    public boolean isMultiStatus() {
        return false;
    }
    public boolean isOK() {
        return fSeverity == IStatus.OK;
    }
    public boolean isWarning() {
        return fSeverity == IStatus.WARNING;
    }
    /**
     * @see IStatus#matches(int)
     */
    public boolean matches(int severityMask) {
        return (fSeverity & severityMask) != 0;
    }
    public void setError(String errorMessage) {
        fStatusMessage= errorMessage;
        fSeverity= IStatus.ERROR;
    }
    public void setInfo(String infoMessage) {
        fStatusMessage= infoMessage;
        fSeverity= IStatus.INFO;
    }
    public void setOK() {
        fStatusMessage= null;
        fSeverity= IStatus.OK;
    }
    public void setWarning(String warningMessage) {
        fStatusMessage= warningMessage;
        fSeverity= IStatus.WARNING;
    }

    /**
     * Returns a string representation of the status, suitable 
     * for debugging purposes only.
     */
    @Override
    public String toString() {
        StringBuffer buf = new StringBuffer();
        buf.append("StatusInfo "); //$NON-NLS-1$
        if (fSeverity == OK) {
            buf.append("OK"); //$NON-NLS-1$
        } else if (fSeverity == ERROR) {
            buf.append("ERROR"); //$NON-NLS-1$
        } else if (fSeverity == WARNING) {
            buf.append("WARNING"); //$NON-NLS-1$
        } else if (fSeverity == INFO) {
            buf.append("INFO"); //$NON-NLS-1$
        } else {
            buf.append("severity="); //$NON-NLS-1$
            buf.append(fSeverity);
        }
        buf.append(": "); //$NON-NLS-1$
        buf.append(fStatusMessage);
        return buf.toString();
    }
}
